Steam-generator.



PATENTBD AUG. 11, l1908.

" l No. 895,514.h

2 SHEETS-SHEET 1.

. N. TILToN.

STEAM GBNERATQR.

APPLICATION FILED FEB. 17, 1&5-

m N j.

MTA/665 6.-

No. 395,514'. j

@WAM

VF. N. TILTN.

STEAM GENERATOR.v APPLICATIoN rrLrzD rnB. 17, 19081 lPATENTBD AUG. 11, i908,

imirnn STATES Pagani onnion.

, FRED N. Timor, or mari-can coxxncTicU'r.

STE AM- GE NERATOR.

Patented Angl. 11, 1908.-

Applcation filed February 17, 1908. Serial No. 416,253.

To all whom it ymay concern.'

Be it known that I, FRED N. TiL'roX, a citizen of the vUnited States, residing at Hartford, iii the county of Hartford and State of Connecticut, have invented a new and useful Steam-Generator, of which the following 'is a specification.

This invention relates to the. construction of a continuous coil tubular boiler, which, while primarily designed for use as a steam generator that is particularly adapted for steam automobiles, it may also be advantageously employed as a feedzwater heater and as a domestic water heater.`\`

The object of the in'vcntionflis-to provide a very simple construction whereby a continuons tube generator or heater cai'ijbe easily made up in compact form so as to have a very large area of well disposed heating\surface, with very few joints, which joints are all beyond t-he range of the direct actio\ `ofthe fuel, which has no short bends and b it'"f`ew long bends, and which will freely expandjaird l contract under temperature changes withoutl`\k straining the tubes or the joints and comico-, tions. Y.

This generator or heater is built of a )lural number of ta )ering spiral coils of ditlerent diameters, eac i coil being formed from a continuous length of seamless tubing or pipe,

and being of such diameter and having its ends so bent that the severa-l coils can be nested one within the other, and the upper end of each outer coil connected with the lower end of the next innei' coil,.and thereby a generating chamber be produced which is continuous from the top or small end of the inner or smallest coil to the bottom or large end of the outer or largest coil, as more particularly hereinafter described and pointed out in the claims.

Figure 1 of the accompanying drawings shows a. plan of a continuous tube generator which embodies the invention. Fig. 2 shows an elevation of the same generator. Fig. 3 shows a' diainetrical section of the saine. F ig. 4 shows a plan of the inner section or smallest coil. Fig. 5 shows a side elevation of the inner coil. Fig. 6 shows a. side elevation of the next to `the smallest coil, or that in which the inner coil is nested, when the coils are assembled for ilse.

The drawings show a generator or heater formed of six tapering spiral coils wound from seainl` tubing or pipe, a, b, c, d, e, f, and nested together, but the invention is not The lower or larger ends of the coils have tangentially extending limbs a', b', c', d', e', f that terminate beyond the plane ofthe outer coil in upturned ends a, b c, d, e f The upper or smaller endsof the coils have tangentiall)- extending limbs am., 5', c'", d, e, f", that terminate beyond the plane of the outer coil in down-turned ends all', bfi/I CVI!! dll/ I I W hen the sections are nested, the downturned end of each coil is connected by a union or other forni of pipe connection g with the upturned end of the next smaller coil.

These connections are all on the outside of *,the apparatus where they can be easily made and reached at. any time, and where they arc not exposed to the direct action of the llame from the burner. Connecting the coils in this manner leaves the upturned end extending from the bottoni of the largest coil free to be connected, if desired, with the engine or other apparatus to which the steam or hot water is to be suppliedr and leaves the outturned end extendin'flifroni the top of the smallest coil free to be connected with the These sections are. the saine pump or other source of water supply. Of

course if desired, the connections could be reversed, that is, the u per or smaller end of the smallest coil could li engine or other apparatus, and the lower or larger end of the argcst coil could be conc connected with the nectedwith the water supply, without changing the construction of the apparatus.

ending the tube or pipe into tapering" spiral coils of different diaiiieteis enables long lengths to 'ce nested together so that the aparatus will he very compact and yet will inve a great area of heating surface ex )oscd to the Hanze-s of the burner in a very eilicient manner. The risers are all on the outside of the coils where neither they, nor the connections, are exposed to the direct action of the flames of the. burner, and wheie the Joints and connections can be readily made, ob-

served and repaired if they become damaged or deteriorated. There are no short bends andthe coils are so disposed that there is no strain on the joints or uprights incident to expansion and contraction, and furthermore, the wa ter of necessity has to pass either from top to bottom or from bottom to top, dcpending upon the mode of connection, through each coil before it passes to the .next coil, rand thus itbecomes, before it reaches theend ofthe pipe, very hot. W'ith this apparatus a round burner or a round fire pot can be used and a maximum amount of heat absorbed or conserved from the burning fuel, whereby a small quantity of water can be rapidly, safety and economically superheated and transformed into steam under high pressure.

The invention claimed is:

1. A generator consisting of a plural number of tapering spiral coils nested together with the upper end of each coil connected ith the lower end of the next smaller coil by a vertical pipe, whereby a continuous generating chamber is formed, substantially as specified. ,A

2. A generator consisting of a 4plural number of tapering spiral boils of different diameters nested together thid'each coil having a tangentially extending upper and lower ond with the. tangential upper end of each outer coil connected with the tdiigential lower end of the next inner coil so as to form a continuous generating chamber, substantially as specified. "N

3. A generator consisting of a plural number of tapering spiral coils nested together and each coil having a down-turned upper end and an 11p-turned lower end with the down-turned upper end of cach coil connected with the u )turned lower end ofeach next smaller coil whereby a continuous generating chamber is formed, substantially as specified.

FRED N. TILTQN.

Vitnessesz GRACE GAULT Monrox F. N INER. 

